Live Smarter through use of the Razer Nabu. a unique smartband that provides you with smartphone alerts and activity tracking functionality. Unlike other smart watches and smartbands. the Nabu discreetly notifies you of incoming smartphone notifications by placing the OLED screen on the bottom of your wrist. Additionally. the Nabu uses an accelerometer to help you track your steps. calories burned. and distance walked each day. The Nabu is currently available as part of a developer kit for $49.99.